1. Bengston BE (1974) The effect of zinc on the mortality and reproduction in the minnow Phoxinus phoxinus (L). Oikos 2:342–355
2. Chan KKS (1977) Chronic effects of methyl mercury on the reproduction of the teleost fish, Oryzias latipes. Ph.D. Thesis, Department of Zoology, University of Columbia, Vancouver, BC, Canada
3. Crandall CA, Goodnight CJ (1963) The effect of sub lethal concentration of several toxicants to common guppy, Lebistes reticulatus. Trans Am Microsc Soc 82:59–73
4. Eller LL (1971) Histopathological lesions in cutthroat trout Salmo clarki exposed chronically to the insecticide endrin. Am J Pathol 64:321–336
5. Freeman HC, Sangalang G (1977) The effect of polychlorinated biphenyl (Aroclor 1252) contaminated diet on steroidogenesis and reproduction in the Atlantic cod, Gadus morhua. ICES CM. 1977/E 67:1–7